<template>
  <div class="loginContainer">
    <div class="loginBox">
      <!-- 登录图标 -->
      <div class="loginAvatar">
        <img src="../assets/logo.png" alt />
      </div>
      <!-- 登录表单 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" class="loginForm">
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            prefix-icon="iconfont icon-3702mima"
            v-model="loginForm.password"
            type="password"
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">提交</el-button>
          <el-button type="info" @click="loginFormReset">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 12, message: '长度在 3 到 12 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    loginFormReset () {
      // login表单对象.resetFields()
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      // 在这里还是要对数据的合法性验证
      this.$refs.loginFormRef.validate(async bool => {
        if (!bool) return
        const { data: res } = await this.$http.post('/login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 保存token
        sessionStorage.setItem('token', res.data.token)
        // 跳传到后台的主页
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang='less' scoped>
.loginContainer {
  background-color: #2b4b6b;
  height: 100%;
  position: relative;

  .loginBox {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 450px;
    height: 300px;
    background-color: #fff;
    .loginAvatar {
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 150px;
      height: 150px;
      background-color: #fff;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #eee;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        border: 1px solid #eee;
        background-color: #eee;
      }
    }
    .loginForm {
      position: absolute;
      bottom: 0;
      width: 100%;
      padding: 0 15px;
      box-sizing: border-box;
      .btns {
        display: flex;
        justify-content: flex-end;
      }
    }
  }
}
</style>
